background: Today spiritual care is one aspect of holistic care. The role of nurses in providing services to patients is important. Attention to the variables involved in this type of care can be a basis for many training programs, especially in health care and treatment. The researchers decided to investigate the relationship between spiritual intelligence and happiness of nursing students that they are health providers  service in country's future.

Methods: This cross-sectional study with quota sampling was conducted in the School of Nursing and Midwifery, Qazvin. 107 nursing students in different academic semesters complete Oxford Happiness Questionnaire and spiritual intelligence. Data analysis did by using spss, 16, and descriptive and inferential statistics were used.

Results: The average age of nursing students was 21.61 ± 5.25. The majority of participants (63.6%) were female. Total score of spiritual intelligence and happiness with mean and standard deviation 145.29±16.44 and 39.32±16.44 respectively. It was not Significant differences between any of the socio demographic variables, except age and Happiness (P =0.031, R=0.209). Significant differences observed between spiritual intelligence & happiness (P = 0.000, R=0.427).

Conclusion: It seems that promote happiness and spiritual intelligence in nursing students can improve their knowledge and ultimately improve the quality of care with an emphasis on pastoral care patients.